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Cheap flights from Philadelphia to Saint Croix from $127

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Saint Croix departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Philadelphia to Saint Croix

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
6:10 am - 3:58 pmPHL-STX
8h 48m1 stop
Spirit Airlines Logo
1:17 pm - 12:32 amSTX-PHL
12h 15m1 stop
$256Spirit Airlines
Find Deal
Fri, Jan 2 - Sat, Jan 10
Spirit Airlines Logo
6:00 am - 4:46 pmPHL-STX
9h 46m1 stop
Spirit Airlines Logo
5:41 pm - 11:41 pmSTX-PHL
7h 00m1 stop
$266Spirit Airlines
Find Deal
Mon, Nov 17 - Wed, Nov 19
Multiple Airlines Logo
6:53 pm - 3:58 pmPHL-STX
20h 05m1 stop
Multiple Airlines Logo
4:53 pm - 12:36 amSTX-PHL
8h 43m1 stop
$291Multiple Airlines
Find Deal
Thu, Dec 11 - Mon, Dec 15
Multiple Airlines Logo
7:11 pm - 3:58 pmPHL-STX
19h 47m2 stops
Multiple Airlines Logo
4:53 pm - 10:36 pmSTX-PHL
30h 43m1 stop
$314Multiple Airlines
Find Deal
Thu, Dec 11 - Mon, Dec 15
Spirit Airlines Logo
6:00 am - 4:46 pmPHL-STX
9h 46m1 stop
Spirit Airlines Logo
5:41 pm - 3:17 pmSTX-PHL
22h 36m2 stops
$319Spirit Airlines
Find Deal
Mon, Nov 17 - Wed, Nov 19
Spirit Airlines Logo
5:15 am - 3:58 pmPHL-STX
9h 43m1 stop
Spirit Airlines Logo
4:53 pm - 11:16 pmSTX-PHL
7h 23m1 stop
$323Spirit Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
American Airlines Logo
5:00 am - 5:05 pmPHL-STX
11h 05m1 stop
American Airlines Logo
8:30 am - 12:42 amSTX-PHL
17h 12m1 stop
$435American Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 19
American Airlines Logo
8:50 am - 9:31 pmPHL-STX
11h 41m2 stops
American Airlines Logo
8:30 am - 5:49 pmSTX-PHL
10h 19m2 stops
$439American Airlines
Find Deal
Wed, Jan 14 - Thu, Jan 22
American Airlines Logo
5:00 am - 5:43 pmPHL-STX
11h 43m1 stop
American Airlines Logo
4:31 pm - 9:53 pmSTX-PHL
6h 22m1 stop
$460American Airlines
Find Deal
Sat, Dec 13 - Fri, Dec 19
American Airlines Logo
5:00 am - 5:43 pmPHL-STX
11h 43m1 stop
American Airlines Logo
4:31 pm - 9:53 pmSTX-PHL
6h 22m1 stop
$495American Airlines
Find Deal
Sun, Dec 14 - Mon, Dec 22

Spirit Airlines flights from Philadelphia to Saint Croix

Our best Spirit Airlines deals on Philadelphia to Saint Croix flight tickets
Spirit Airlines
Jan 2
PHL6:10 amPhiladelphia
8h 48m
1 stop
STX3:58 pmChristiansted Henry Rohlsen
Jan 10
STX1:17 pmChristiansted Henry Rohlsen
12h 15m
1 stop
PHL12:32 amPhiladelphia
$256
Find similar
Spirit Airlines
Nov 17
PHL6:00 amPhiladelphia
9h 46m
1 stop
STX4:46 pmChristiansted Henry Rohlsen
Nov 19
STX5:41 pmChristiansted Henry Rohlsen
7h 00m
1 stop
PHL11:41 pmPhiladelphia
$266
Find similar
Spirit Airlines
Nov 17
PHL6:00 amPhiladelphia
9h 46m
1 stop
STX4:46 pmChristiansted Henry Rohlsen
Nov 19
STX5:41 pmChristiansted Henry Rohlsen
22h 36m
2 stops
PHL3:17 pmPhiladelphia
$319
Find similar

American Airlines flights from Philadelphia to Saint Croix

Our best American Airlines deals on Philadelphia to Saint Croix flight tickets
American Airlines
Jan 12
PHL5:00 amPhiladelphia
11h 05m
1 stop
STX5:05 pmChristiansted Henry Rohlsen
Jan 19
STX8:30 amChristiansted Henry Rohlsen
17h 12m
1 stop
PHL12:42 amPhiladelphia
$435
Find similar
American Airlines
Jan 14
PHL8:50 amPhiladelphia
11h 41m
2 stops
STX9:31 pmChristiansted Henry Rohlsen
Jan 22
STX8:30 amChristiansted Henry Rohlsen
10h 19m
2 stops
PHL5:49 pmPhiladelphia
$439
Find similar
American Airlines
Dec 13
PHL5:00 amPhiladelphia
11h 43m
1 stop
STX5:43 pmChristiansted Henry Rohlsen
Dec 19
STX4:31 pmChristiansted Henry Rohlsen
6h 22m
1 stop
PHL9:53 pmPhiladelphia
$460
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Saint Croix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Philadelphia to Saint Croix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 1/2

6:10 am-3:58 pm

1 stop8h 48m

Christiansted Henry Rohlsen

Sat 1/10

1:17 pm-12:32 am

1 stop12h 15m

$256

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 11/17

6:00 am-4:46 pm

1 stop9h 46m

Christiansted Henry Rohlsen

Wed 11/19

5:41 pm-11:41 pm

1 stop7h 00m

$266

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Thu 12/11

6:53 pm-3:58 pm

1 stop20h 05m

Christiansted Henry Rohlsen

Mon 12/15

4:53 pm-12:36 am

1 stop8h 43m

$291

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Thu 12/11

7:11 pm-3:58 pm

2 stops19h 47m

Christiansted Henry Rohlsen

Mon 12/15

4:53 pm-10:36 pm

1 stop30h 43m

$314

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 11/17

6:00 am-4:46 pm

1 stop9h 46m

Christiansted Henry Rohlsen

Wed 11/19

5:41 pm-3:17 pm

2 stops22h 36m

$319

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 12/5

5:15 am-3:58 pm

1 stop9h 43m

Christiansted Henry Rohlsen

Mon 12/8

4:53 pm-11:16 pm

1 stop7h 23m

$323

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 1/12

5:00 am-5:05 pm

1 stop11h 05m

Christiansted Henry Rohlsen

Mon 1/19

8:30 am-12:42 am

1 stop17h 12m

$435

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Wed 1/14

8:50 am-9:31 pm

2 stops11h 41m

Christiansted Henry Rohlsen

Thu 1/22

8:30 am-5:49 pm

2 stops10h 19m

$439

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Sat 12/13

5:00 am-5:43 pm

1 stop11h 43m

Christiansted Henry Rohlsen

Fri 12/19

4:31 pm-9:53 pm

1 stop6h 22m

$460

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Sun 12/14

5:00 am-5:43 pm

1 stop11h 43m

Christiansted Henry Rohlsen

Mon 12/22

4:31 pm-9:53 pm

1 stop6h 22m

$495

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Saint Croix from

How to get the cheapest flight ticket from Philadelphia to Saint Croix

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Philadelphia to Saint Croix?

Spirit Airlines, American Airlines, and United Airlines are the most popular carriers operating from Philadelphia to Saint Croix

What airlines fly to Saint Croix?

American Airlines, JetBlue and Spirit Airlines are the top three most popular airlines that fly to Saint Croix from Philadelphia according to our data. American Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Saint Croix. Keep in mind that there are 6 different airlines that fly to Saint Croix on a routine basis, so you have a few additional options to choose from.

Cheap Philadelphia to Saint Croix flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Saint Croix

Direct flights

None
There are no direct flights from Philadelphia to Saint Croix. There are no popular flight routes from Philadelphia to Saint Croix.
Search flight deals

  • When did momondo last update prices for flights from Philadelphia Airport to Saint Croix?

    Prices for flights from Philadelphia Airport to Saint Croix are refreshed on a daily basis.

  • How many operators does momondo search for flights from Philadelphia Airport to Saint Croix?

  • How old do you have to be to fly from Philadelphia Airport to Saint Croix?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Saint Croix.

  • What documentation or ID do you need to fly to Saint Croix?

    The travel and health documents you'll need for your trip to Saint Croix may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Croix. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Philadelphia to Saint Croix

Compare and see reviews for airlines that fly from Philadelphia to Saint Croix with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $108Free CancellationRating
5.8
3,117 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $231Free CancellationRating
6.3
8,114 reviews
Search Spirit Airlines flights
DeltaPriceFrom $299Free CancellationRating
7.9
8,001 reviews
Search Delta flights
American AirlinesPriceFrom $373Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Saint Croix?

Finding the right flight to Saint Croix from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Croix quick and easy, saving you time and money.

Can I find flights from Philadelphia to Saint Croix with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Saint Croix from Philadelphia with this policy.

How can momondo help me find flights from Philadelphia to Saint Croix?

Once you have performed a search for Philadelphia to Saint Croix flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Saint Croix right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Philadelphia to Saint Croix flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Saint Croix trip

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